Can smart touch-screen phones make calls at gas stations?

No, because the mobile phone is a radio communication tool, radio waves (radio frequency electromagnetic radiation) emitted by the radio transmitter can induce radio frequency current in the antenna receiving the radio. When RF current circulates between metal conductors, if corrosion or poor contact occurs, RF sparks will occur. As long as the duration of RF spark exceeds 1 microsecond and the energy exceeds 6 MW, the mixture of methane and air will be ignited. Because gasoline is a volatile substance, in the flammable gas danger zone formed by the leakage of oil and gas tanks and natural gas pipelines, the radio frequency sparks generated by mobile phones can easily lead to explosions and disasters. The mobile phone itself does not have explosion-proof function. When a gas station injects gasoline into the fuel tank of a car or motorcycle through an oil gun, the oil and gas in the original empty fuel tank drifts outward, and the newly injected gasoline also volatilizes into the air, so that the oil and gas density around the refueling vehicle suddenly increases. At the same time, in order to make the communication signal clearer, people use mobile phones with high frequency and strong transmission power, which meet the national standards, but also pose a serious threat to gas filling stations; Because computer control is widely used in refueling stations now, high-intensity mobile phone signals will be induced by computer equipment, and the instantaneous electronic friction between them may ignite fuel vapor and cause an explosion. The current required to ignite the gas is very small, and the electrostatic current generated by the mobile phone in the working state can completely reach this limit. If you encounter cloudy or foggy weather with high air humidity and low air pressure when picking up and unloading oil products at refueling and filling stations, the density of oil and gas will increase accordingly due to poor air circulation, and the possibility of explosion caused by picking up mobile phones will further increase. (transferred from other places)